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Machine Design

Machine Design
The included angle for the V-belt is usually

40°-60°
10°-20°
30°-40°
60°-80°

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Machine Design
In order to have smooth operation, the minimum number of teeth on the smaller sprocket, for moderate speeds, should be

17
21
25
15

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Machine Design
The design of pin of a rocker arm of an I.C. engine is based on

Bearing failure
All of these
Bending failure
Shearing failure

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Machine Design
The shock resistance of steel is increased by adding

Nickel
Nickel and chromium
Chromium
Cobalt and molybdenum

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Machine Design
Which of the following key is preferred for the condition when a large amount of impact type torque is to be transmitted in both direction of rotation?

Gib-head key
Feather key
Woodruff key
Tangent key

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Machine Design
A crankshaft is a __________ shaft.

None of these
Machine frame
Machine
Transmission

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